LeBron James Writes A Letter Thanking His Absent Dad

MIAMI, FL - May 26: LeBron James #6 of the Miami Heat looks on during the game against the Indiana Pacers during Game Four of the Eastern Conference Finals of the 2014 NBA playoffs at the American Airlines Arena in Miami, Florida on May 26, 2014. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and/or using this photograph, user is consenting to the terms and conditions of the Getty Images License Agreement. Mandatory copyright notice: Copyright NBAE 2014 (Photo by Issac Baldizon/NBAE via Getty Images)

(Issac Baldizon/NBAE via Getty Images)

LeBron James never knew his father. However, he thanks him in an Instagram post, claiming it fueled him to excel in his work: